feat(codegen): instantiate class templates

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/tests/iii/template-class-errors/case.json b/tests/iii/template-class-errors/case.json
new file mode 100644
index 0000000..100438f
--- /dev/null
+++ b/tests/iii/template-class-errors/case.json
@@ -0,0 +1,8 @@
+{
+  "errors": [
+    {"reason": "No matching overload for Make", "line": 10},
+    {"reason": "Wrong number of template arguments for Box", "line": 11},
+    {"reason": "Class template Box requires template arguments", "line": 12},
+    {"reason": "Unknown or invalid template argument Nope for Box", "line": 13}
+  ]
+}